Which statement best expresses the reason why the southern states decided to secede from the union after the election of 1860? the southern economy and way of life would be destroyed without slave labor. slaves would begin an uprising if the states did not secede. seceding from the union would end the possibility of war. secession would end the conflicts between northern states over slavery.

The answer is The southern economy and way of life would be destroyed without slave labor.

Explanation:

Even by the mid 1850's, the economy of South was mainly based on crop and agriculture which was driven by the excessive usage of Slaves and the slavery system.

Abolishing slavery would disrupt this economy and the established way of life in the south. which is why they resisted strongly and adversely.

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in the 1800s, locomotives powered by steam made transportation faster and cheaper. the resulting rapid growth of railroads led to the connection of the atlantic and pacific railroad in oklahoma city in 1897.

in the last years of the century, the improvement of steam-based engines the expansion and growth of railroads. this growth increased when the companies started to build and expand, such as the atlantic and pacific railroad, which connected new mexico with california, and missouri with oklahoma. many of these new networks were built in oklahoma, and these changes transportation henceforward.